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Author Question: When a crate slides down an incline at a constant velocity it is A) in dynamic equilibrium. B) ... (Read 28 times) |
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
The average office desk has 400 times more bacteria on it than a toilet.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.